In the recent literature on formation in online theological education, a number of thematic strands can be delineated: the apologetic, didactic, pedagogical, empirical, and geographical strands. However, apart from the early apologetic stage of the discussion theological reflection plays a minor role in the literature. In this article, I argue that theology plays a limited and superficial role in contemporary writings about formation in online theological education. Yet, spiritual formation in online theological education needs theological grounding. Given the accelerated shift to forms of online education across the world, such theological grounding is an urgent task. In this renewed theological engagement, three areas especially call for sustained attention: (1) the multi-faceted nature of spiritual formation; (2) the question of agency in spiritual formation and the consequences for the theological curriculum; and (3) engagement with theological traditions that offer ample material to guide our contemporary thinking about spiritual formation.